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Dave
Questions and answers by
Dave
, page 3
Questions (497)
You are driving to the grocery store at 12.7 m/s. You are 108.0 m from an intersection when the traffic light turns red. Assume
2 answers
476 views
Sally runs 2.8 m/s. John runs 1.9 m/s. if John has a 30 m head start. How far before Sally catches John?
1 answer
455 views
Did UC Irvine stop sending acceptances for 2012? If not, when is the last day? Also when do they send rejection letters? Thanks
5 answers
343 views
A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.6 m/s2. She decides to test the car by
2 answers
649 views
Orange juice is often touted by nutritionists as being an excellent antioxidant. Within an essay response, discuss the following
1 answer
383 views
Would you agree that it is valuable for a nation to have a citizenry that is reasonably well versed in science? Give reasons for
1 answer
335 views
Which of the following statements is FALSE about Andrew Johnson's perspective about the South?
Answer He viewed Southern
2 answers
596 views
container holding 340g of water (initially at 14 degrees celsius) is placed in microwave oven, which is turned on for 3 minutes.
5 answers
483 views
Consider the trigonometric function f(t) =
-3+4cos(pi/3(t-3/2)) What is the amplitude/period of f(t)? What are the maximum and
2 answers
485 views
Consider the function f(x) = 2x
2 + 1. Find the equation of the tangent to the graph of f(x) at x = 2 (when calculating f'(2, use
1 answer
369 views
The volume of grains in a silo at a particular time (measured in hours) is given
by V (t) = 4t(3-t)m^3 Find the rate of change of
2 answers
698 views
At rest, the human heart beats once every second. At the strongest part of the
beat, a person's blood pressure peaks at 120mmHg.
2 answers
962 views
Orange juice is often touted by nutritionists as being an excellent antioxidant. Within an essay response, discuss the following
1 answer
770 views
Would you agree that it is valuable for a nation to have a citizenry that is reasonably well versed in science? Give reasons for
1 answer
400 views
Discuss the original purposes of the Freedman’s Bureau and the goals of the planned enlargement of the program by Congress.
3 answers
1,058 views
Describe the purpose of the Native American reservation as well as the lives led by those who resided there. Did the reservation
1 answer
486 views
ok here we go ... its a series-parellel circuit with 5 resistors.
12 volt battery- wire goes up then one wire branches up at 45
3 answers
525 views
Period Cycle Time
1 45 2 33 3 44 4 30 5 51 6 47 7 39 8 34 9 69 10 43 11 29 12 38 13 45 14 49 15 73 16 38 17 50 18 40 19 57 20 36
1 answer
532 views
The value of acceleration due to gravity (g) on a point
10,000 kilometers above sea level is about 1.49 meters/second2. How much
4 answers
1,634 views
An FM radio station broadcasts electromagnetic waves at a frequency of 1.08 × 10§ hertz. The speed of these waves is 3.0 ×
2 answers
898 views
Suppose the space shuttle is in orbit 430 km from the Earth's surface, and circles the Earth about once every 93.2 minutes. Find
2 answers
778 views
At an altitude of 18.40 Km the temperature is 147.54K and at 78.11 Km it is 567.00K, What is the temperature at 61.5 Km?
1 answer
428 views
A ball is released from a hot air balloon moving downward with a velocity of
-10.0 meters/second and a height of 1,000 meters.
3 answers
579 views
Monthly rent: $309
Security deposit: $100 Utility deposit: $60 Phone installation: $38 Initial charges:
3 answers
930 views
Twelve samples, each containing five parts, were taken
from a process that produces steel rods. The length of each rod in the
1 answer
645 views
vertically up at 28m/sec, gravity 9.8 meters/sec^2 = what is max. height
1 answer
257 views
If a beam of blue light was shone through a glass prism, you would expect to see
A. The beam pass straight through, unaltered B.
1 answer
530 views
What changed, if anything, in the American political culture between 2004 and 2008? Further, please feel free to examine changes
1 answer
479 views
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of
3 answers
382 views
Suppose that a stable element with atomic number 119, symbol Wr, has been discovered.
(d) What would be the most likely charge of
4 answers
974 views
How long would it take a 20Kw heater to warm up 1000 litres of water from 15 degrees to 55 degrees in hours? specific heat of
2 answers
492 views
A 3000kg satellite orbits the Earth 400km above the equator. find
a)The speed of the satellite b) The kinetic energy of the
2 answers
656 views
A 1.00kg piece of aluminum at 90.0c in placed in 4.00 liters (4.00kg) of water at 25.0c. What is the final temperature(Tf)
4 answers
1,388 views
A piece of aluminum with an unknown mass ios at 85c and is placed in a 2.00 liters of water at 25.0c. The final temperature
1 answer
467 views
A red ball is thrown up off the edge of a building 10 m tall with an initial speed of 4 m/s.
A) how long does it take for the red
2 answers
865 views
An object is placed 4 cm in front of a concave lens of focal length 3 cm. Using the lens equation, find where the image will
2 answers
505 views
Consider an airplane wing of area 15 m2. The airflow speed over the top of the wing is 205 m/s, while the speed across the
1 answer
498 views
The antinode of a standing wave is 0.052 m away from the nearest node. What is the wavelength of the waves that combine to make
1 answer
485 views
how far will a 1000kg car travel in 10 sec if it is accelerated from rest by a force of 5000N
1 answer
346 views
A car is traveling with a speed of 34 m/s. If the tires have an angular speed of 103 rad/s, what is the radius of the tires
1 answer
392 views
Sole this equation 5x+9=3x+41 what does x=
1 answer
249 views
5x+9=3x+37 x=
1 answer
207 views
$9000 invested at an APR of 9% for five years. In interest is compounded annually, what Ia the amount of money after 5 years?
2 answers
759 views
$1000 invested at an APR of 9% for 9 years. If interest is compounded annually, what is the amount of money after nine years?
2 answers
596 views
$24,000 is invested for 3 years with an APR of 2% and daily compounding. Balance in the account after 3. years is $ ___
2 answers
502 views
$1000 invested at an APR of 9% for 9 years. If interest is compounded annually, what is the amount of money after nine years?
1 answer
452 views
$3000 invested at an APR of 5% for 7 years. If interest is compounded annually , what is the amount of money after 7 years?
2 answers
505 views
$3000 invested at an APR of 5% for 7 years. If interest is compounded annually , what is the amount of money after 7 years?
2 answers
817 views
$3000 invested at an APR of 5% for 7 years. If interest is compounded annually , what is the amount of money after 7 years?
4 answers
1,280 views
A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years will be??
5 answers
465 views
This is my problem:
A particle with a density of 0.9g/ml is suspended in a solution that has a density of 1.1g/ml. It cannot be
1 answer
357 views
Just this one question please .
1.According to the MLA style, how should you format the title of a magazine article? A . In
4 answers
727 views
8.A number raised to a negative exponent is negative.
Always, never , or sometimes. 7. Evaluate 1/2a^-4b^2 a = -2 and b = 4. 6.
2 answers
1,204 views
An airplane is flying in a horizontal circle at a speed of 104 m/s. The 88.0 kg pilot does not want the centripetal
2 answers
581 views
why is viscosity such an important property of matter?
3 answers
1,395 views
Expain why deepa sea fishes are not crushed by the pressure of all of the water above them.
I think maybe its because their
1 answer
369 views
Expain why deep sea fishes are not crushed by the pressure of all of the water above them.
I think maybe its because their
1 answer
425 views
how many kw is an airflow of 30m³/s @130°C
1 answer
373 views
Andrew has 12 coins, all dimes and nickels, and they add up to $1.00. How many nickels does he have?
3 answers
286 views
The probability that a person has blue eyes is 16%. Three unrelated people are selected at random.
a. Find the probability that
5 answers
3,069 views
Can someone help me with online exam ( fundamental of chemical engineering class ) ?
Please eamil me ( davd_jo(at)(ya h o o )dot
1 answer
298 views
Intergrate the following.
y = cos(x)(2sin(x)-1)^6
1 answer
306 views
A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68of to 1500 of. If the
1 answer
475 views
A helicopter is flying in a straight line over a level field at a constant speed of 6.2 m/s and at a constant altitude of 11.3
2 answers
607 views
Me and my friend are playing on a Ferris wheel which has Radius of 20 Meter and had an constant angular velocity of 0.2 rad/s .
T
1 answer
385 views
3 resistors of 5 ohms,15 ohms, and 30 ohms are connected in series and placed across a 50 volt batt. Find the voltage drops
1 answer
467 views
This integral does not converge using the normal (Leibniz) definition of integration. Using the identity:
int(0-->inf)f(t)/(t)dt
2 answers
547 views
a)the E0 for the reactions 2HOCl + 2H+ + 2e- → Cl2 + 2H20 and Cl2 + 2e- → Cl- are 1.63 and 1.396 volts respectively. Write
4 answers
603 views
the probabilities of a boy passing English and Mathematics tests are x and y. What is the probability of failing both
3 answers
397 views
Solve for p
11 - 2(8+3p) = 49
3 answers
365 views
Read the passage below and answer the question:
Jack: I’ll be there in 20 minutes. I’m stopping at the store to pick up some
2 answers
975 views
If Cot θ = -Square Root of 15/7, use the fundamental identities to find Cosθ > 0.
2 answers
722 views
Find the value of 3sec2.4. (Round to the nearest tenth.)
1 answer
368 views
Find the value of 3sec2.4. (Round to the nearest tenth.)
1 answer
295 views
Sketch the curve represented by the parametric equations x = 3 cos θ and y = 3 sin θ for 0≤θ≤π
2 answers
691 views
A projectile is fired with an initial velocity of 88 ft/sec at an angle of 35° to the horizontal. Neglecting air resistance,
1 answer
302 views
A projectile is fired with an initial velocity of 88 ft/sec at an angle of 35° to the horizontal. Neglecting air resistance,
1 answer
362 views
In a solution with carbon tetrachloride as the solvent, the compound VCl4 undergoes dimerization:
2VCl4 <-> V2Cl8 When 6.6834 g
2 answers
856 views
A car starts at a position of x=6 km and has a speed of 6 mph. After 42 s the car has a speed of 60 mph. Determine the magnitude
2 answers
609 views
A rock is dropped from rest. How fast is it going after it has been falling for 8.3 s?
1 answer
438 views
If you have swam one lap in a swimming pool, that means you have swam from one end to the other and back. In 1.5 h, a swimmer
2 answers
743 views
If instead, the swimmer makes 77.5 laps in the same pool in 1.5 h, determine the total distance the swimmer traveled, the
7 answers
575 views
Explain the theoretical basis of ethical behavior?
1 answer
449 views
If .1ml of serum, 5ml of reagent and 4.9ml of distilled water are mixed together what is the dilution of the serum in the final
5 answers
3,097 views
what is the net present value of a note for $70,000, PAID MONTHLY AT $600, plus 7% interest
1 answer
325 views
Last night 16/28 of the tenth grade girls and 19/30 of the tenth grade boys went to go ice skating. Did a greater fraction of
2 answers
505 views
How would you incorporate logic and experimentation into your curriculum and still emphasize Native American thinking into your
2 answers
714 views
A rectangle has side lengths of 5 centimeters and 3 centimeters. if the side lengths are doubled, will the area also doubal?
3 answers
1,420 views
If an archaeologist finds an ancient fire pit containing partially consumed firewood and the 14C content of the wood is only 10%
1 answer
480 views
A rectangular field has a perimeter of 56 rods. If a strip 2 rods wide is cut from all sides of the field, the remaining part of
4 answers
549 views
A 97 dodge neon locks it's brakes up and skids 15 ft before hitting a motorcyclist then continues to skid another 130 ft without
1 answer
508 views
The point (r,theta) in polar coordinates is (7,5) in rectangular coordinates. What is the point (2r, theta + pi/2) in
4 answers
1,093 views
help pls!!! thank u in advance, i appreciate it greatly
Alex, Alicia, and Juan fill orders in a fast-food restaurant. Alex
1 answer
1,131 views
find y' of 4(cos(x^3))^2 when x = 1.
I got -24(1)(cos(1)(sin(1) = -0.4187 but the answer is -10.9.
1 answer
308 views
Richard has to move a 45.5kg couch in order to vacuum behind it. He is able to push against it with a force of 85.3N. He does
1 answer
358 views
Draw the mechanism of the reaction of (E)-stilbene with Br2.
2 answers
526 views
The force required to stretch a spring varies directly with the amount the spring is stretched. A force of 29 pounds is needed
4 answers
4,671 views
bobpursley, is answering questions on this all you do?
1 answer
338 views
Consider the 690 N weight held by two cables. The left-hand cable had tension T2 and makes an angle of 41◦ with the ceiling.
4 answers
937 views
Which of the following statements best summarizes the "fiddler's bill" Bostonians had to pay for the tea party, as described in
7 answers
2,291 views
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